Mysterious tunnels sketched by Leonardo da Vinci are DISCOVERED after 500 years Written in code and peppered with baffling sketches, the notebooks of Leonardo da Vinci are bursting with tantalising mysteries.
Scientists have now revealed that da Vinci was likely sketching a series of hidden tunnels beneath the Sforza Castle in Milan (pictured).
Scientists have now used these sketches to help reconstruct a 3D map of the castle] When Francesco died in 1466, his son Ludovico Sforza took over the project and invited leading artists, including Leonardo da Vinci, to decorate the interior.
A series of mysterious tunnels first sketched by da Vinci around 1495 have now been discovered beneath the Sforza Castle in Milan.
A network of tunnels beneath a castle sketched by Leonardo da Vinci in 1495 has now been discovered after baffling historians for more than 500 years.
